“We’re using
Immunity+ sires
to improve the
health of the
next generation.”
Jason DeGroot
3rd Generation Family Manager
at 4,350-cow DeGroot Dairy
Hanford, California, USA

”Using Immunity+ can
benefit the herd in many
ways… reducing costs,
cows are healthier,
perform better, vet bills
are lower and at the end
of the day we have easier
cows to manage.”
Emma Martin
Owner of 1,000 cow herd in Bodmin
Cornwall, United Kingdom

New to the marketplace, Semexâ&#x20AC;&#x2122;s exclusive, patented
Immunity+ sires have been tested and confirmed to
have high levels of immune response. Studies show that
Immunity+ sires pass on their natural defense to their
daughters and future generations.

Building a Stronger Herd
Higher quality colostrum - High Immune Response (HIR) cows
have been shown to produce higher quality colostrum with more
antibodies. HIR cows not only pass on their higher immune
response genes to their offspring, but they also pass on early life
immune benefits through their colostrum.

Higher quality colostrum with more antibodies

wk 0
HIGH

wk 2
AVE

wk 3

wk 4

wk 6

LOW

Greater response to vaccines - Individuals ranked as HIR have a
better response to commercial vaccines. By using Immunity+ sires,
you will develop animals that take better advantage of vaccines,
maximizing your herd vaccination programâ&#x20AC;&#x2122;s return on investment!
Less disease â&#x20AC;&#x201C; HIR cows have lower disease occurrence and severity
including mastitis, metritis, retained placenta and Johnes.

Healthy cows make life easier for Jason DeGroot on his family’s
4,350-cow dairy in Hanford, California. “The benefits of Immunity+
make sense to our dairy. A healthier dairy animal with less disease,
greater response to vaccines and higher quality colostrum.”

“Immunity+ makes
sense for our dairy.”

DISEASE RESISTANT GENETICS
What research has been done to validate Immunity+?
There have been numerous studies conducted by the University of
Guelph and the University of Florida over the last 22 years relating
to various aspects of High Immune Response technology.

Building
a stronger
herda selection
The first research
was done using

DAUGHTERS OF IMMUNITY+™ SIRES ARE EXPECTED TO HAVE

experiment in swine, involving several
thousand pigs from selected lines of high and
low immune responders over nine generations.
%
The results for swine were
$ similar to that for
less indicating a heritability of 25% and
cattle,
daughter
disease
high responders had improved
immunity and
added
profit
better growth.

4 to 8

HERITABILITY

25%

80 per

Following that, dozens of studies have been

HERITABILITY

Including mastitis, metritis,
In addition to the $ value
done
involving
dairy
ketosis and
retained
placenta. thousands
of the of
genetics
for cattle in research herds,
Early indications
show
a
desired
other
traits.
commercial herds, and beta test herds. Each of theseProduction
independent
Traits 25-35%
response to Johnes as well.